4-Cyano-2-hydroxy-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Methyl 3-fluoro-5-methyl-6-(trifluoromethoxy)pyridine-2-carboxylate
3-Cyano-5-hydroxy-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Methyl 3-cyano-5-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate